144730637 has 2 divisors, whose sum is σ = 144730638. Its totient is φ = 144730636.

The previous prime is 144730633. The next prime is 144730679. The reversal of 144730637 is 736037441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111218116 + 33512521 = 10546^2 + 5789^2 .

It is an emirp because it is prime and its reverse (736037441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144730637 - 2² = 144730633 is a prime.

It is equal to p_8164358 and since 144730637 and 8164358 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 144730597 and 144730606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144730633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72365318 + 72365319.

It is an arithmetic number, because the mean of its divisors is an integer number (72365319).

Almost surely, 2^144730637 is an apocalyptic number.

It is an amenable number.

144730637 is a deficient number, since it is larger than the sum of its proper divisors (1).

144730637 is an equidigital number, since it uses as much as digits as its factorization.

144730637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 144730637 is about 12030.4046897850. The cubic root of 144730637 is about 525.0332701516.

The spelling of 144730637 in words is "one hundred forty-four million, seven hundred thirty thousand, six hundred thirty-seven".